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Table 1 Summary of Nutritional Supplement products investigated for Melamine

From: Melamine contamination in nutritional supplements - Is it an alarm bell for the general consumer, athletes, and ‘Weekend Warriors’?

  Overall samples acquired in South Africa Produced and purchased in South Africa Imported and purchased in South Africa
(n = 138) (n = 27) (n = 50)
Qualitative Assessment Screen Total No. 64 22 29
Positives (%) 47 82 58
Estimate Concentration (*) ≥ LLOQ (ng/g) Low 218 513 218
≥ LLOQ (ng/g) High 127030 127030 76419
Median (ng/g) 6031 8860 6940
  1. * 1ppm = 1mg/kg = 1000ng/g = 1 μg/g